Vendor dependencies for 0.3.0 release

vendor/naga_oil/examples/bevy_pbr_wgsl/mesh.wgsl

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+#import bevy_pbr::mesh_view_bindings
+#import bevy_pbr::mesh_bindings
+
+// NOTE: Bindings must come before functions that use them!
+#import bevy_pbr::mesh_functions
+
+struct Vertex {
+    @location(0) position: vec3<f32>,
+    @location(1) normal: vec3<f32>,
+#ifdef VERTEX_UVS
+    @location(2) uv: vec2<f32>,
+#endif
+#ifdef VERTEX_TANGENTS
+    @location(3) tangent: vec4<f32>,
+#endif
+#ifdef VERTEX_COLORS
+    @location(4) color: vec4<f32>,
+#endif
+#ifdef SKINNED
+    @location(5) joint_indices: vec4<u32>,
+    @location(6) joint_weights: vec4<f32>,
+#endif
+};
+
+struct VertexOutput {
+    @builtin(position) clip_position: vec4<f32>,
+    #import bevy_pbr::mesh_vertex_output
+};
+
+@vertex
+fn vertex(vertex: Vertex) -> VertexOutput {
+    var out: VertexOutput;
+#ifdef SKINNED
+    var model = skin_model(vertex.joint_indices, vertex.joint_weights);
+    out.world_normal = skin_normals(model, vertex.normal);
+#else
+    var model = mesh.model;
+    out.world_normal = mesh_normal_local_to_world(vertex.normal);
+#endif
+    out.world_position = mesh_position_local_to_world(model, vec4<f32>(vertex.position, 1.0));
+#ifdef VERTEX_UVS
+    out.uv = vertex.uv;
+#endif
+#ifdef VERTEX_TANGENTS
+    out.world_tangent = mesh_tangent_local_to_world(model, vertex.tangent);
+#endif
+#ifdef VERTEX_COLORS
+    out.color = vertex.color;
+#endif
+
+    out.clip_position = mesh_position_world_to_clip(out.world_position);
+    return out;
+}
+
+struct FragmentInput {
+    @builtin(front_facing) is_front: bool,
+    #import bevy_pbr::mesh_vertex_output
+};
+
+@fragment
+fn fragment(in: FragmentInput) -> @location(0) vec4<f32> {
+#ifdef VERTEX_COLORS
+    return in.color;
+#else
+    return vec4<f32>(1.0, 0.0, 1.0, 1.0);
+#endif
+}